Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a chilly 49.5°F (9.7°C) to a wintry 39.6°F (4.2°C). Nighttime temperatures in Brooklyn consistently average a subzero cold 28.2°F (-2.1°C) during December.Humidity
In December, the average relative humidity is 82%.Rainfall
In December, in Brooklyn, the rain falls for 11.3 days. Throughout December, 2.76" (70mm) of precipitation is accumulated. In Brooklyn, during the entire year, the rain falls for 171.4 days and collects up to 36.1" (917mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Brooklyn. In December, in Brooklyn, it is snowing for 7.6 days. Throughout December, 3.11" (79mm) of snow is accumulated. Throughout the year, in Brooklyn, Indiana, there are 33.7 snowfall days, and 12.48" (317mm) of snow is accumulated.Daylight
December has the shortest days of the year in Brooklyn, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:47 am and sunset at 5:22 pm. On the last day of December, in Brooklyn, Indiana, sunrise is at 8:05 am and sunset at 5:31 pm EST.
Sunshine
In Brooklyn, the average sunshine in December is 4.2h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Brooklyn. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 during December leads to these advisories:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is December in Brooklyn?
What is the average humidity in December in Brooklyn?
How many days does it rain in December in Brooklyn?
How many days does it snow in December in Brooklyn?
What is the month with the shortest days in Brooklyn?
What is the average length of the day in December in Brooklyn?
When are sunrise and sunset in December in Brooklyn?
How long on average sun shines in December in Brooklyn?
What is the month with the lowest UV index in Brooklyn?
What is the UV index intensity in December in Brooklyn?
Average temperature in December
Brooklyn, IN
- Average high temperature in December: 39.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Brooklyn, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Brooklyn, IN
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Brooklyn, IN
- Average humidity in December: 82%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Brooklyn, IN
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
Brooklyn, IN
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Brooklyn, IN
- Average snowfall in December: 3.11"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Brooklyn, IN
- Average snowfall days in December: 7.6 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brooklyn, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Brooklyn, IN
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in December
Brooklyn, IN
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Brooklyn, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Brooklyn, IN
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, July and December (5mi).
Brooklyn, Indiana, USA
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